论文部分内容阅读
一我國的科學有着悠久的历史和光榮的傳統。在化學方面,我們的祖先在三代時(約公元前2000年)巳獨立發明了青銅的冶炼,在戰國時(約公元前400午)獨立發明了煉鐵的方法。作為传播文化的主要工具之一的紙張是蔡伦在東汉时(約公元100年)首先發明的;作為爆破工程所需炸药的原始形式——黑火药也是我國在唐朝時(約公元800年)首先發明的。
Our country’s science has a long history and a glorious tradition. Chemically, our ancestors invented the smelting of bronze independently during the third generation (circa 2000 BC) and invented the method of ironmaking independently during the Warring States Period (circa 400 BC). The paper that was one of the main instruments of the dissemination of culture was first invented by Cai Lun in the Eastern Han Dynasty (about 100 AD); the original form of explosives needed for the blasting project - the black powder was also the first in our country during the Tang Dynasty (about 800 AD) invented.